| 332313 |
Smokestacks, fabricated metal boiler plate, manufacturing |
| 332313 |
Space simulation chambers, fabricated metal plate work, manufacturing |
| 332313 |
Sterilizing chambers, fabricated metal plate work, manufacturing |
| 332313 |
Trash racks, fabricated metal plate work, manufacturing |
| 332313 |
Troughs, industrial, fabricated metal plate work, manufacturing |
| 332313 |
Truss plates, metal, manufacturing |
| 332313 |
Tunnel lining, fabricated metal plate work, manufacturing |
| 332313 |
Tunnels, wind, fabricated metal plate work, manufacturing |
| 332313 |
Weldments manufacturing |
| 332321 |
Casements, metal, manufacturing |